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Hydraulic Properties of the Aquifer System
Regional Flow System
Groundwater Development
Groundwater Chemistry
Potential for Future Development
PDF Version

Summary of the Hydrology of the Floridan Aquifer System In Florida and In Parts of Georgia, South Carolina, and Alabama

By Richard H. Johnson and Peter W. Bush
USGS Professional Paper 1403-A
(Published in 1988)



The Regional Aquifer-System Analysis (RASA) Program was started in 1978 following a congressional mandate to develop quantitative appraisals of the major ground-water systems of the United States. The RASA Program represents a systematic effort to study a number of the Nation's most important aquifer systems, which in aggregate underlie much of the country and which represent an important component of the Nation's total water supply. In general, the boundaries of these studies are identified by the hydrologic extent of each system and accordingly transcend the political subdivisions to which investigations have often arbitrarily been limited in the past. The broad objective for each study is to assemble geologic, hydrologic, and geochemical information, to analyze and develop an understanding of the system, and to develop predictive capabilities that will contribute to the effective management of the system. The use of computer simulation is an important element of the RASA studies, both to develop an understanding of the natural, undisturbed hydrologic system and the changes brought about in it by human activities, and to provide a means of predicting the regional effects of future pumping or other stresses.

The final interpretive results of the RASA Program are presented in a series of U.S. Geological Survey Professional Papers that describe the geology, hydrology, and geochemistry of each regional aquifer system. Each study within the RASA Program is assigned a single Professional Paper number, and where the volume of interpretive material warrants, separate topical chapters that consider the principal elements of the investigation may be published. The series of RASA interpretive reports begins with Professional Paper 1400 and thereafter will continue in numerical sequence as the interpretive products of subsequent studies become available.

Dallas L. Peck
Director (former)

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For readers who prefer to use SI units rather than inch-pound units, conversion factors for terms used in this report are listed below:

To obtain
foot (ft)
meter (m)
mile (mi)
kilometer (km)
square mile (mi2)
square kilometer (km2)
million gallons per day (Mgal/d)
cubic meter per second (m3/s)
gallon per minute (gal/min)
liter per second (L/s)
cubic foot per second (ft3s)
cubic meter per second (m3/s)
inch per year (in./yr)
millimeters per year (mm/yr)
foot squared per day (ft2/d)
meter squared per day (m2/d)

Related links:

Hydrogeology, Ground-Water Movement, and Subsurface Storage in the Floridan Aquifer System in Southern Florida (Professional Paper 1403G)

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